Assuming it's on the same machine: perhaps they have an instrument which runs on Windows 95 and they do some light data processing, or use Matlab to make it interoperate with another device?

We've had a similar need in my lab, although it was Windows 2000. We buy new machines alright, but some instruments can't be easily upgraded due to the computer being integrated with it, the drivers being proprietary and specific to the OS, etc.